Airports with the longest walks between gates

At Chicago's O'Hare International Airport, a passenger could walk 5,536 feet (about 1.04 miles) by taking a long stroll from Concourse C in Terminal 1, through the 745-foot underground pedestrian tunnel, past all the gates in Concourse B and back out to the end of the L Concourse in Terminal 3.

Harriet Baskas and LAWA's Nancy Castles finish measuring the longest walk at LAX

Movie posters on the walk between Terminals A and B at PHL

Dallas/Fort Worth International Airport